Vulnerabilities / Threats
4/5/2012
01:53 PM
Connect Directly
Google+
LinkedIn
Twitter
RSS
E-Mail
50%
50%

Mac Botnet Now 600,000 Infected Machines Strong

Apple has issued a patch for its version of Java, but critics say it should have acted sooner to contain a trojan variant called Flashback, which has infected an estimated 1% of all Macs.

10 Key Steve Jobs Moments and Innovations
10 Key Steve Jobs Moments and Innovations
(click image for larger view and for slideshow)
Apple earlier this week released an update for its version of Oracle's Java software to limit the spread of a Flashback trojan variant that has already infected over 600,000 Macs.

Russian security company Dr. Web said on Wednesday that it estimates over 600,000 Macs have been hijacked by the malware and joined in a botnet. About half of the infected computers are located in the U.S., the company said, and about 20% are located in Canada.

F-Secure chief research offiicer Mikko Hypponen via Twitter observed that with an installed base of about 45 million Macs, Flashback appears to have infected about 1% of the Macs out there, making it comparable in terms of reach to the Conficker malware in the Windows world.

The Flashback trojan is able to take over computers by exploiting vulnerabilities in Java. Visiting or being directed to a compromised website might allow the malware to take over your Mac. The malware relies on JavaScript code to load a malicious Java applet. Disabling Java--via one's Web browser security settings or via the Java Preferences file likely to be found in Applications/Utilities/--should protect against this particular threat.

[ Read Apple Investigating New iPad Wi-Fi Problem. ]

Dr. Web says that attackers first began using the CVE-2011-3544 and CVE-2008-5353 vulnerabilities in February, and then moved to another vulnerability, CVE-2012-0507, in March.

Apple often has been criticized for not responding fast enough to security vulnerabilities and this incident shows the tradition continues. Security reporter Brian Krebs notes that "[Apple's] lackadaisical (and often plain puzzling) response to patching dangerous security holes perpetuates the harmful myth that Mac users don't need to be concerned about malware attacks."

Oracle patched CVE-2012-0507 in February. However, Apple distributes its own version of Java, previously bundled with OS X and presently as an optional download in Lion (OS X 10.7).

Apple used to claim, "Mac OS X isn't plagued by constant attacks from viruses and malware" because the operating system was "designed with security in mind." It has since qualified its assertions about security and now states, "A Mac isn't susceptible to the thousands of viruses plaguing Windows-based computers."

Even that statement appears to be questionable given that software such as Oracle's Java, Adobe's Flash, and Apple's own iTunes--all of which have had publicly exploited vulnerabilities--can be found on both Mac and Windows machines.

Most external hacks of databases occur because of flaws in Web applications that link to those databases. In this report, Protecting Databases From Web Applications, we'll discuss how security teams, database administrators, and application developers can work together to improve the defenses of both front-end Web applications and back-end databases to prevent these attacks from succeeding. (Free registration required.)

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Andrew Hornback
50%
50%
Andrew Hornback,
User Rank: Apprentice
4/6/2012 | 9:22:44 PM
re: Mac Botnet Now 600,000 Infected Machines Strong
Aren't Macs supposed to be impervious to these sorts of things? That's the impression that I've gotten from every Mac user that I've ever tried to discuss system security with.

Maybe now Mac users will finally take security seriously, but somehow I doubt it.

Any system powered on and equipped with an active network connection is at risk for breach - to think otherwise is foolish.

Andrew Hornback
InformationWeek Contributor
Register for Dark Reading Newsletters
Partner Perspectives
What's This?
In a digital world inundated with advanced security threats, Intel Security seeks to transform how we live and work to keep our information secure. Through hardware and software development, Intel Security delivers robust solutions that integrate security into every layer of every digital device. In combining the security expertise of McAfee with the innovation, performance, and trust of Intel, this vision becomes a reality.

As we rely on technology to enhance our everyday and business life, we must too consider the security of the intellectual property and confidential data that is housed on these devices. As we increase the number of devices we use, we increase the number of gateways and opportunity for security threats. Intel Security takes the “security connected” approach to ensure that every device is secure, and that all security solutions are seamlessly integrated.
Featured Writers
White Papers
Cartoon
Current Issue
Dark Reading's October Tech Digest
Fast data analysis can stymie attacks and strengthen enterprise security. Does your team have the data smarts?
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-7877
Published: 2014-10-30
Unspecified vulnerability in the kernel in HP HP-UX B.11.31 allows local users to cause a denial of service via unknown vectors.

CVE-2014-3051
Published: 2014-10-29
The Internet Service Monitor (ISM) agent in IBM Tivoli Composite Application Manager (ITCAM) for Transactions 7.1 and 7.2 before 7.2.0.3 IF28, 7.3 before 7.3.0.1 IF30, and 7.4 before 7.4.0.0 IF18 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof s...

CVE-2014-3668
Published: 2014-10-29
Buffer overflow in the date_from_ISO8601 function in the mkgmtime implementation in libxmlrpc/xmlrpc.c in the XMLRPC extension in PHP before 5.4.34, 5.5.x before 5.5.18, and 5.6.x before 5.6.2 allows remote attackers to cause a denial of service (application crash) via (1) a crafted first argument t...

CVE-2014-3669
Published: 2014-10-29
Integer overflow in the object_custom function in ext/standard/var_unserializer.c in PHP before 5.4.34, 5.5.x before 5.5.18, and 5.6.x before 5.6.2 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an argument to the unserialize function ...

CVE-2014-3670
Published: 2014-10-29
The exif_ifd_make_value function in exif.c in the EXIF extension in PHP before 5.4.34, 5.5.x before 5.5.18, and 5.6.x before 5.6.2 operates on floating-point arrays incorrectly, which allows remote attackers to cause a denial of service (heap memory corruption and application crash) or possibly exec...

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
Follow Dark Reading editors into the field as they talk with noted experts from the security world.